ramips: fix reboot for remaining 32 MB boards

The following devices have a Winbond W25Q256FV flash chip,
which does not have the RESET pin enabled by default,
and otherwise would require setting a bit in a status register.

Before moving to Linux 5.4, we had the patch:
0053-mtd-spi-nor-add-w25q256-3b-mode-switch.patch
which kept specific flash chips with explicit 3-byte and 4-byte address modes
to stay in 3-byte address mode while idle (after an erase or write)
by using a custom flag SPI_NOR_4B_READ_OP that was part of the patch.

this was obsoleted by the patch:
481-mtd-spi-nor-rework-broken-flash-reset-support.patch
which uses the newer upstream flag SNOR_F_BROKEN_RESET
for devices with a flash chip that cannot be hardware reset with RESET pin
and therefore must be left in 3-byte address mode when idle.

The new patch requires that the DTS of affected devices
have the property "broken-flash-reset", which was not yet added for most of them.

This commit adds the property for remaining affected devices in ramips target,
specifically because of the flash chip model.

However, it is possible that there are other devices
where the flash chip uses an explicit 4-byte address mode
and the RESET pin is not connected to the SOC on the board,
and those DTS would also need this property.

Ref: 22d982ea0033 ("ramips: add support for switching between 3-byte and 4-byte addressing")
Ref: dfa521f12953 ("generic: spi-nor: rework broken-flash-reset")
Signed-off-by: Michael Pratt <mcpratt@pm.me>

22 files changed, 46 insertions, 7 deletions

diff --git a/target/linux/ramips/dts/mt7620a_youku_yk-l1.dts b/target/linux/ramips/dts/mt7620a_youku_yk-l1.dts
index 5155318b0c..3a607ee5fa 100644
--- a/target/linux/ramips/dts/mt7620a_youku_yk-l1.dts
+++ b/target/linux/ramips/dts/mt7620a_youku_yk-l1.dts
@@ -7,6 +7,10 @@
 	model = "Youku YK-L1";
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7620a_youku_yk-l1.dtsi b/target/linux/ramips/dts/mt7620a_youku_yk-l1.dtsi
index 937a41d54b..ac874cef3d 100644
--- a/target/linux/ramips/dts/mt7620a_youku_yk-l1.dtsi
+++ b/target/linux/ramips/dts/mt7620a_youku_yk-l1.dtsi
@@ -56,7 +56,7 @@
 &spi0 {
 	status = "okay";
 
-	flash@0 {
+	flash0: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <80000000>;
diff --git a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026-h-32m.dts b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026-h-32m.dts
index 0fc8fc60e4..577e7e05e9 100644
--- a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026-h-32m.dts
+++ b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026-h-32m.dts
@@ -8,6 +8,10 @@
 	model = "Zbtlink ZBT-WE1026-H (32M)";
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026.dtsi b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026.dtsi
index cdbdfbd38c..57f3b4b7a6 100644
--- a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026.dtsi
+++ b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we1026.dtsi
@@ -30,7 +30,7 @@
 &spi0 {
 	status = "okay";
 
-	flash@0 {
+	flash0: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
diff --git a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-32m.dts b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-32m.dts
index c86890193d..8c4eb31988 100644
--- a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-32m.dts
+++ b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-32m.dts
@@ -5,6 +5,10 @@
 	model = "Zbtlink ZBT-WE826 (32M)";
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-e.dts b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-e.dts
index 3808538ab8..fe54148154 100644
--- a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-e.dts
+++ b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826-e.dts
@@ -33,6 +33,10 @@
 	};
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826.dtsi b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826.dtsi
index 8e781aa505..27876fc140 100644
--- a/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826.dtsi
+++ b/target/linux/ramips/dts/mt7620a_zbtlink_zbt-we826.dtsi
@@ -52,7 +52,7 @@
 &spi0 {
 	status = "okay";
 
-	flash@0 {
+	flash0: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
diff --git a/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts b/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts
index 8c1d2788c1..384da1bfa9 100644
--- a/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts
+++ b/target/linux/ramips/dts/mt7621_glinet_gl-mt1300.dts
@@ -69,6 +69,7 @@
 		reg = <0>;
 		spi-max-frequency = <80000000>;
 		m25p,fast-read;
+		broken-flash-reset;
 
 		partitions {
 			compatible = "fixed-partitions";
diff --git a/target/linux/ramips/dts/mt7621_xiaoyu_xy-c5.dts b/target/linux/ramips/dts/mt7621_xiaoyu_xy-c5.dts
index c1f10ac55e..0027bc96fe 100644
--- a/target/linux/ramips/dts/mt7621_xiaoyu_xy-c5.dts
+++ b/target/linux/ramips/dts/mt7621_xiaoyu_xy-c5.dts
@@ -47,6 +47,7 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <25000000>;
+		broken-flash-reset;
 
 		partitions {
 			compatible = "fixed-partitions";
diff --git a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526-32m.dts b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526-32m.dts
index fe4bc72f39..66a762289d 100644
--- a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526-32m.dts
+++ b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526-32m.dts
@@ -5,6 +5,10 @@
 	model = "Zbtlink ZBT-WG3526 (32M)";
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526.dtsi b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526.dtsi
index 87f9e2243c..01269e1c1c 100644
--- a/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526.dtsi
+++ b/target/linux/ramips/dts/mt7621_zbtlink_zbt-wg3526.dtsi
@@ -49,7 +49,7 @@
 &spi0 {
 	status = "okay";
 
-	flash@0 {
+	flash0: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
diff --git a/target/linux/ramips/dts/mt7628an_hak5_wifi-pineapple-mk7.dts b/target/linux/ramips/dts/mt7628an_hak5_wifi-pineapple-mk7.dts
index 0b21724b1a..2901a2af51 100644
--- a/target/linux/ramips/dts/mt7628an_hak5_wifi-pineapple-mk7.dts
+++ b/target/linux/ramips/dts/mt7628an_hak5_wifi-pineapple-mk7.dts
@@ -81,6 +81,7 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <50000000>;
+		broken-flash-reset;
 
 		partitions {
 			compatible = "fixed-partitions";
diff --git a/target/linux/ramips/dts/mt7628an_hilink_hlk-7688a.dts b/target/linux/ramips/dts/mt7628an_hilink_hlk-7688a.dts
index 231aa15bfc..2c7299af72 100644
--- a/target/linux/ramips/dts/mt7628an_hilink_hlk-7688a.dts
+++ b/target/linux/ramips/dts/mt7628an_hilink_hlk-7688a.dts
@@ -61,6 +61,7 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;
+		broken-flash-reset;
 
 		partitions {
 			compatible = "fixed-partitions";
diff --git a/target/linux/ramips/dts/mt7628an_jotale_js76x8-32m.dts b/target/linux/ramips/dts/mt7628an_jotale_js76x8-32m.dts
index 07e8be7848..75ee98836a 100644
--- a/target/linux/ramips/dts/mt7628an_jotale_js76x8-32m.dts
+++ b/target/linux/ramips/dts/mt7628an_jotale_js76x8-32m.dts
@@ -7,6 +7,10 @@
 	model = "Jotale JS76x8 (32M)";
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7628an_jotale_js76x8.dtsi b/target/linux/ramips/dts/mt7628an_jotale_js76x8.dtsi
index 03de21224b..2d2f8a58b8 100644
--- a/target/linux/ramips/dts/mt7628an_jotale_js76x8.dtsi
+++ b/target/linux/ramips/dts/mt7628an_jotale_js76x8.dtsi
@@ -58,7 +58,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi_pins>, <&spi_cs1_pins>;
 
-	flash@0 {
+	flash0: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;
diff --git a/target/linux/ramips/dts/mt7628an_onion_omega2.dtsi b/target/linux/ramips/dts/mt7628an_onion_omega2.dtsi
index 742c975d66..b10d448a30 100644
--- a/target/linux/ramips/dts/mt7628an_onion_omega2.dtsi
+++ b/target/linux/ramips/dts/mt7628an_onion_omega2.dtsi
@@ -95,7 +95,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi_pins>, <&spi_cs1_pins>;
 
-	flash@0 {
+	flash0: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;
diff --git a/target/linux/ramips/dts/mt7628an_onion_omega2p.dts b/target/linux/ramips/dts/mt7628an_onion_omega2p.dts
index 4ec07dbd91..5694576974 100644
--- a/target/linux/ramips/dts/mt7628an_onion_omega2p.dts
+++ b/target/linux/ramips/dts/mt7628an_onion_omega2p.dts
@@ -5,6 +5,10 @@
 	model = "Onion Omega2+";
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7628an_widora_neo-32m.dts b/target/linux/ramips/dts/mt7628an_widora_neo-32m.dts
index c2387984c8..9fe13eb549 100644
--- a/target/linux/ramips/dts/mt7628an_widora_neo-32m.dts
+++ b/target/linux/ramips/dts/mt7628an_widora_neo-32m.dts
@@ -5,6 +5,10 @@
 	model = "Widora-NEO (32M)";
 };
 
+&flash0 {
+	broken-flash-reset;
+};
+
 &firmware {
 	reg = <0x50000 0x1fb0000>;
 };
diff --git a/target/linux/ramips/dts/mt7628an_widora_neo.dtsi b/target/linux/ramips/dts/mt7628an_widora_neo.dtsi
index 74f865aac9..fd146e9264 100644
--- a/target/linux/ramips/dts/mt7628an_widora_neo.dtsi
+++ b/target/linux/ramips/dts/mt7628an_widora_neo.dtsi
@@ -52,7 +52,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi_pins>, <&spi_cs1_pins>;
 
-	flash@0 {
+	flash0: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;
diff --git a/target/linux/ramips/dts/mt7628an_wiznet_wizfi630s.dts b/target/linux/ramips/dts/mt7628an_wiznet_wizfi630s.dts
index 3f5db4441f..9ce585021e 100644
--- a/target/linux/ramips/dts/mt7628an_wiznet_wizfi630s.dts
+++ b/target/linux/ramips/dts/mt7628an_wiznet_wizfi630s.dts
@@ -97,6 +97,7 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <40000000>;
+		broken-flash-reset;
 
 		partitions {
 			compatible = "fixed-partitions";
diff --git a/target/linux/ramips/dts/mt7628an_wrtnode_wrtnode2.dtsi b/target/linux/ramips/dts/mt7628an_wrtnode_wrtnode2.dtsi
index 9024fb711b..bb35357808 100644
--- a/target/linux/ramips/dts/mt7628an_wrtnode_wrtnode2.dtsi
+++ b/target/linux/ramips/dts/mt7628an_wrtnode_wrtnode2.dtsi
@@ -28,6 +28,7 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
+		broken-flash-reset;
 
 		partitions {
 			compatible = "fixed-partitions";
diff --git a/target/linux/ramips/dts/mt7628an_zyxel_keenetic-extra-ii.dts b/target/linux/ramips/dts/mt7628an_zyxel_keenetic-extra-ii.dts
index 50094a82da..d292b211af 100644
--- a/target/linux/ramips/dts/mt7628an_zyxel_keenetic-extra-ii.dts
+++ b/target/linux/ramips/dts/mt7628an_zyxel_keenetic-extra-ii.dts
@@ -86,6 +86,7 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <10000000>;
+		broken-flash-reset;
 
 		partitions {
 			compatible = "fixed-partitions";